他在黑暗中小心翼翼地摸索钥匙孔找锁。

He carefully ___felt for the keyhole in the dark to find the lock.

老师指出那个在考试中作弊的学生。

The teacher ___pointed at the student who cheated on the exam.

她用手指轻快地拨动着尤克里里的琴弦。

She ___strummed the ukulele strings lightly and swiftly.

别乱动我的电脑设置！

Stop ___messing with my computer settings!